After the machine has been asleep for a time, it won't re-start by touching the mouse or hitting the 'return' key. I have to physically shutdown and restart. Any suggestions? Thanks
iMac (27-inch, Late 2013), OS X Mavericks (10.9)
Hello Lowell Lewis,
If I understand correctly you need to hold down the power button at the back of the unit to turn it off, then turn it back on when it goes to sleep because the computer does not appear to respond to any keyboard presses or moving/clicking the mouse. I would recommend the Additional Troubleshooting section of the following article to help you troubleshoot the issue here from the following articleYour computer cannot wake from sleep' does not quite seem relevant for you:
OS X: When your Mac doesn't sleep or wake
Reset SMC
The System Management Controller (SMC) is involved in managing power on your computer. Reset the SMC on your Mac if you are having difficulty sleeping or waking your computer.
Reset NVRAM/PRAM
Nonvolatile RAM (NVRAM)/Parameter RAM (PRAM) stores some power-related settings.Try resetting NVRAM/PRAM if you are having difficulty sleeping or waking your computer.
Test with external devices disconnected
Some external devices can prevent your computer from sleeping. Try disconnecting items other than your Apple keyboard or mouse from the built-in USB, Thunderbolt and Firewire ports on your Mac. If this resolves the issue, try reconnecting your external devices one at a time until you find the device preventing sleep or wake. Check the documentation that came with the device, or contact the device manufacturer for more information.
Try Safe Mode
Check to see if the issue still occurs when the computer is started in Safe Mode. If this resolves the issue, it could be related to a third party software item such as:
- a login item
- a startup item
- a third party kernel extension
Try another user account
Try creating another user account, or log in as guest. See if your computer sleeps and wakes properly from the additional user account. If it does, your issue may be related to one of the following:
- a login item
- an app open in the original user account
You can disable login items from the Accounts pane of System Preferences. Try opening only one app at a time in the original user account to determine which app is preventing sleep. If you isolate the issue to a particular app or login item, check its documentation, or contact the developer of that software for more information.
Thank you for using Apple Support Communities.
All the very best,
Sterling
iMac won't re-start after being asleep
